He always wants it the same way...

Not sure about you ladies but sometimes I want sex to be slow and gentle and loving. But for some reason my bf gets carried away and starts to try and go as fast as he can. I've asked him to slow down and he does briefly but then he forgets or something idk. It can be frustrating and I think that's why I sometimes bleed because my body isn't ready for it super fast and hard at that moment. I don't know if having a serious conversation about it beforehand would help because I feel like he'll just get carried away again...